File: [local] / OpenXM / src / asir-port / cgi / webasir2.c (download)
Revision 1.5, Mon Sep 1 02:41:48 2014 UTC (9 years, 10 months ago) by takayama
Branch: MAIN
CVS Tags: HEAD Changes since 1.4: +69 -8
lines
Autostart the server httpd-asir2.sh from webasir2.c
lock/unlock system.
See also comments in webasir2.c
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/* $OpenXM: OpenXM/src/asir-port/cgi/webasir2.c,v 1.5 2014/09/01 02:41:48 takayama Exp $
*/
/*
-(httpd-asir2.sm1) run webasir2
>log 2>&1
- Todo, timer(limit, command, message) implement in sm1.
- Example. webasir2 --asir 'oxMessageBody=1%2B3%3B'
- Example. webasir2 --asir '3-2'
- Error handling is not completed. Run src/kan96xx/Doc/httpd-asir2-kill.sh by cron.
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <netdb.h>
#include <string.h>
#define SIZE 0x10000
#define MKEY "oxMessageBody="
char *byteArrayToUrlEncoding(char *s,int size);
static int cgiHex(int p);
char *urlEncodedStringToString(char *s);
int Debug=1;
int SetTimer=0;
int main(int argc,char *argv[]) {
int dataPort;
struct hostent *servhost;
struct sockaddr_in dServer;
FILE *fp;
char s[1];
char fname[SIZE];
int i,j,c;
char key[SIZE];
char comm[SIZE];
char asircomm[SIZE];
int quit;
char workf[SIZE];
quit = 0;
asircomm[0] = 0;
for (i=1; i<argc; i++) {
if (strcmp(argv[i],"--quit")==0) quit=1;
else if (strcmp(argv[i],"--asir")==0) {
i++;
if (i <argc) strcpy(asircomm,argv[i]);
else { usage(); return(-1); }
}else if (strcmp(argv[i],"--debug")==0) {
i++;
if (i <argc) sscanf(argv[i],"%d",&Debug);
else { usage(); return(-1); }
}else if (strcmp(argv[i],"--settimer")==0) {
i++;
if (i <argc) sscanf(argv[i],"%d",&SetTimer);
else { usage(); return(-1); }
} else if (strcmp(argv[i],"--stdin")==0) {
asircomm[0] = 0; j=0;
while ((c=getchar()) != EOF) {
asircomm[j] = c; j++; asircomm[j] = 0;
if (j > SIZE-3) {
fprintf(stderr,"error, too big input.\n"); return(-1);
}
}
} else {
usage(); return(0);
}
}
sprintf(workf,"/tmp/tmp-webasir-%d.txt",(int) getpid());
sprintf(comm,"ls /tmp/webasir*.txt >%s",workf);
system(comm);
fp = fopen(workf,"r");
if (fp == NULL) {
fprintf(stderr,"Failed ls\n"); return(-1);
}
fgets(fname,SIZE-2,fp);
for (i=strlen(fname)-1; i>=0; i--) {
if (fname[i] <= ' ') fname[i]=0; else break;
}
fclose(fp);
if (strlen(fname)==0) {
if (Debug) fprintf(stderr,"No webasir2 pid file.\n");
if (Debug) {fprintf(stderr,"No webasir2 is running. Start server.\n");}
startServer();
sleep(5);
system(comm);
fp = fopen(workf,"r");
if (fp == NULL) {
fprintf(stderr,"Failed to start the server.\n"); return(-1);
}
fgets(fname,SIZE-2,fp);
for (i=strlen(fname)-1; i>=0; i--) {
if (fname[i] <= ' ') fname[i]=0; else break;
}
if (strlen(fname) == 0) {
fprintf(stderr,"Failed to start the server. No webasir2 pid file.\n"); return(-1);
}
fclose(fp);
}
fp = fopen(fname,"r");
if (fp == NULL) {
fprintf(stderr,"Open error of %s\n",fname); return(-1);
}
mylock(fname);
fgets(key,SIZE-2,fp); sscanf(key,"%d",&dataPort);
if (Debug) printf("dataPort=%d\n",dataPort);
fgets(key,SIZE-2,fp);
for (i=strlen(key)-1; i>=0; i--) {
if (key[i] <= ' ') key[i]=0; else break;
}
if (Debug) printf("key=%s\n",key);
fclose(fp);
sprintf(comm,"rm -f %s",workf);
system(comm);
if ((servhost = gethostbyname("localhost")) == NULL) {
fprintf(stderr,"bad server name.\n"); return(-1);
}
/* Connecting to the data port */
bzero((char *)&dServer,sizeof(dServer));
dServer.sin_family = AF_INET;
dServer.sin_port = htons(dataPort);
bcopy(servhost->h_addr,
(char *)&dServer.sin_addr,servhost->h_length);
if ((dataPort = socket(AF_INET,SOCK_STREAM,0)) <0) {
fprintf(stderr,"socket allocation is failed.\n");
}
if (Debug) fprintf(stderr,"Trying to connect port %d ",ntohs(dServer.sin_port));
if (connect(dataPort,(struct sockaddr *)&dServer,sizeof(dServer)) == -1) {
fprintf(stderr,"error: cannot connect\n");
}else{ if (Debug) fprintf(stderr,"Connected\n"); }
if ((strlen(asircomm)==0) && (!quit)) {myunlock(fname); outputTop(); return(0); }
/* If the input is MKEY=..., extract ... */
if (strncmp(asircomm,MKEY,strlen(MKEY))==0) {
strcpy(comm,&(asircomm[strlen(MKEY)]));
strcpy(asircomm,comm);
strcpy(asircomm,urlEncodedStringToString(asircomm));
if (Debug) fprintf(stderr,"oxMessageBody, asircomm=%s\n",asircomm);
}
if (SetTimer) {
strcpy(comm,asircomm);
for (i=strlen(comm)-1; i>=0; i--) {
if ((comm[i] == ';') || (comm[i] <= ' ')) comm[i] = 0;
else break;
}
sprintf(asircomm,"timer(%d,%s,\"error(timeout %d sec)\");",
SetTimer,comm,SetTimer);
}
if (quit) {
sprintf(comm,"GET /?msg=httpdAsirMeta+quit HTTP/1.1\n\n");
write(dataPort,comm,strlen(comm));
fflush(NULL);
}else{
sprintf(comm,"GET /?%s=%s;\n\n",key,byteArrayToUrlEncoding(asircomm,strlen(asircomm)));
write(dataPort,comm,strlen(comm));
fflush(NULL);
}
/* get result */
for (i=0; i<SIZE; i++) comm[i]=0;
read(dataPort,comm,SIZE-2);
/* remove newline(s) */
for (i=strlen(comm)-1; i>0; i--) {
if (comm[i] < ' ') comm[i] = 0;
else break;
}
myunlock(fname);
outputResult(comm);
}
/* from kan96xx/plugin/oxcgi.c */
/* . - _ A-Z a-z 0-9
space --> +
*/
static int isUrlEncoding3(char s) {
if ((s == '.') || (s == '-') || (s == '_')) return(0);
if ((s >= 'A') && (s <= 'Z')) return(0);
if ((s >= 'a') && (s <= 'z')) return(0);
if ((s >= '0') && (s <= '9')) return(0);
if (s == ' ') return(0);
return(1);
}
char *byteArrayToUrlEncoding(char *s,int size) {
int n,i,j;
char *r;
n = 0;
/* get Size */
for (i=0; i<size; i++) {
if (isUrlEncoding3((char)s[i])) n += 3;
n++;
}
r = malloc(n+1);
if (r == NULL) {fprintf(stderr,"%s\n","No more memory."); return(NULL); }
r[0] = 0; r[n] = 0;
i = 0; j = 0;
while ((j < n) && (i<size)) {
if (isUrlEncoding3((char)s[i])) {
sprintf(&(r[j]),"%%%02X",s[i]); j += 3;
}else{
if ((char)s[i] == ' ') r[j]='+';
else r[j] = s[i];
j++; r[j] = 0;
}
i++;
}
return(r);
}
char *urlEncodedStringToString(char *s)
{
char *ts;
char *ts2;
int i,j;
int p;
int vstart, vend;
if (s == NULL) return(NULL);
vstart = 0; vend = strlen(s)-1;
ts = (char *) malloc(strlen(s)+2);
if (ts == NULL) ;
j = 0; ts[j] = 0;
for (i=vstart; i<=vend; i++,j++) {
ts[j] = 0;
if (s[i] == '+') {
ts[j] = ' '; ts[j+1] = 0;
}else if (s[i] == '%') {
p = cgiHex(s[i+1])*16+cgiHex(s[i+2]);
i = i+2;
ts[j] = p; ts[j+1] = 0;
}else {
ts[j] = s[i]; ts[j+1] = 0;
}
}
ts2 = (char *) malloc(j);
if (ts2 == NULL) ;
for (i=0; i<j; i++) {
ts2[i] = ts[i]; ts2[i+1] = 0;
}
return (ts2);
}
static int cgiHex(int p) {
if (p >= '0' && p <= '9') return (p-'0');
if (p >= 'A' && p <= 'F') return (p-'A'+10);
if (p >= 'a' && p <= 'f') return (p-'a'+10);
if (Debug) fprintf(stderr,"%s\n","Invalid argument to cgiHex.");
}
outputTop() {
printf("Content-Type: text/html\n\n");
printf("<html><body>\nInput <br> asir-command <br> without semicolon. <br><br>\n");
printf("<form method=\"POST\"> <input type=submit>\n");
printf("<textarea name=\"oxMessageBody\" rows=10 cols=\"80\" wrap=\"soft\">\n");
printf("</textarea>\n</form>\n");
printf("</body></html>\n");
}
outputResult(char *s) {
printf("Content-Type: text/plain\n\n");
printf("%s\n",s);
}
startServer() {
char comm[SIZE];
char *r;
r = getenv("CGI_ASIR_ALLOW");
if (r == NULL) {
setenv("CGI_ASIR_ALLOW","[(quit) (fctr)]",1);
}
sprintf(comm,"%s/src/kan96xx/Doc/httpd-asir2.sh >/dev/null 2>&1 &",getenv("OpenXM_HOME"));
/* sprintf(comm,"echo $CGI_ASIR_ALLOW\n"); security check. */
system(comm);
}
mylock(char *fname) {
char comm[SIZE];
sprintf(comm,"mv %s /tmp/lock-webasir-%d.txt",fname,getpid());
system(comm);
}
myunlock(char *fname) {
char comm[SIZE];
sprintf(comm,"mv /tmp/lock-webasir-%d.txt %s",getpid(),fname);
system(comm);
}
usage() {
fprintf(stderr,"webasir2 [--quit] [--asir command_string]\n");
fprintf(stderr," [--debug level]\n");
fprintf(stderr," [--settimer seconds]\n");
fprintf(stderr,"webasir2 --stdin ; command is obtained from the stdin.\n");
}